Meat-cutting machine.



J. F. MAYFIELD & H. B. ALGER.

MEAT CUTTING MACHINE.

APPLICATION FILED 0015, 1911.

W M 0mm m QH 3 m m m. W M Q v /4 1 JJZ A w n! ,& l 8., W M Q fl wwfi u 0., @f d I a 1 a F 1 (I. F. MAYFIELD & H. B. ALGER- MEAT CUTTING MACHINE. APPLICATION PILEQ 001m, 1911.

1,080,875,, Patented Dec.9, 1913.

' 2 SHBETHHIBBT z.

wi tueooco JAMES E. MA'ZFIELD AND EIEAM B. NIGER, F LAKEVIEW, GREECE.

MEAT-CUTTING MASCHINE. U

Specification of Letters Patent.

ean aoamea October sis-1t. serial No. esaorr.

and HIRAM B. ALGER, citizens of the United States, residing at Lakeview,

in the county of Lake and State of Oregon, have invented certain new and useful Improvements in Meat-Cutting Machines, of which the f ol-, lowing is a specification, reference being had to the accompanying drawings.

This invention relates to that class of machines for cutting meat, in wh ch cutting blades revolve in roximity to a perforated plate, and the obgeet oi -the inventlon is to provide a machine of this character in"v which the-necessity of specialoperations for sharpening said blades and the perforated plate will be avoided. I a

With the above andother objects in view, the invention consists of the novel features of construction, combination and arrangement of parts hereinafter described, pointed out in the claim-and illustrated in the accompanying drawings, in which, Figure 1 is a longitudinal sectional view through the cutting machine and support ing base; Fig. 2 is a front view of the cutting blade; Fig. 3 is a sectional view. on the. line 3-3 of: F1g...1:;,Fig. 4 is a face view ofthe perforated plate; and Fig. 5 is a section: taken on the line 5.5 of Fig. 2. V

Referring to the drawing, the numeral 1 designates a base having formed upon its upper end a pair of spaced supports 2, each of which are provided with boxings 3, the purpose of which will be hereinafter described. v

The cutter pro or consists of a cylinder 4, havingformed t ierewith a hopper 5, and through which meat or the like is fed to the cylinder. The cylinder 4 is provided at its rear end with an annular flange 6, the same being adapted to .rest against a similar flange 7 formed upon either of the supports 2, and bolted or otherwise suitably secured, whereby the cylinder is supported in its operative position, and may be disconnected at any time to clean the same. The outer end of the cylinder 4 is threaded, and is adapted to receive a screw ring'8, by which a perforated plate 9 is secured inits proper position. The plate 9 is provided with a central opening 10, in which the extension 11 of the feed screw 12 is journaled. The extension 11 is provided with a squared portion 13, upon which is mounted the cutter 14. Formed integral with the inner end "of the-feed screw 12 is a journal extension .15, the same being supported in one of the boxings 3, and being of sufficient lengthtoformed between the project into the space supporting arms 2, where it is fixed in the hub 16 of a belt-pulley 17 by which motion .is imparted to the said screw.

The interior orthe cylinder 4 is provided with a series of spaced ribs 18, the side walls;-

g19o2t which are tapered to the same degree,

so that the meat in the cylinder willbefedto the cutter 14 upon rotation of thefeed screw with either right or left spiral ribs.

I The cutter 14 comprises a hub 20, by which the same is mounted upon the squared @porti'on 13 of the journal extensioni llflso that the same will be rotated during the re- ;tation of the feed screw. Radiating from the hub 20 is a number of arms 21 each of which is-concave in cross section, and taper gradually toward their outer ends. Each arm is provided with cuttin edges 22 and 23, the portion between sai cut-ting 'edges providing bearing faces 24, which rest flush against the inner face of the perforated ate 9. By forming the arms 21 concave in cross section the cutting edges 22 and 23and bearing faces 24 are the. only-parts-oi the ;cutter which contact with the plate 9. By -tapering-the arms 21 the cutting edges thereof are caused, during the rotation of the cutter, to create a draw cutting action upon the material, which naturally reduces the strain upon the operative parts of the machine, and at the same time eifectually cuts the material.

Referring to Fig. l of the drawing it will be noted that a feed screw 25 is mounted in one,of the supports 2 in a manner similar to the feed screw 12, but ribs 26 thereon are so arranged as to feed the material toward the blade and plate upon the same being rotated, the only difference between said feed screw and feed screw 12 being the direction in which the ribs are arranged, said feed screws both rotating in the same direction when power is imparted to the belt pulley 17.

From the foregoing description it will be seen that when the cylinder 4 is in the position as shown in Fig. 1 of the drawing the cutter 14 is traveling in a reverse direction to that when the cylinder has been transferred to the other support 2 and in a position to permit the feed screw 25 to rotate therein. While the rotation of the feed Patented De c.. 91,ii9?13,

Screws 2 l 25 is than {imam the and ranged in opposite directions.

direction, it is apparent that upon moving the cylinder from one to the other the dire'ction of travel of the knife is'reversed, but the material being acted upon will be forced toward the'cutter 14 and through the perforated late 9, due to the fact that the spiral ribs upon the feed screws are ar- ;,It is a, well known fact that in machines of' this type the cutting edges 27 of the perforations 28 formed in the plate 9 are worn or become dull by the constant travel of the cutter 14 in one direction only, and that the cutting edge of the cutter at the same time becomes worn and dull. In the present invention the travel of the cutter is reversed .when desired, so that when one of the cutitwill be seen ting edges 22 is acting the cutting edges 23 are performing no function but at the same 'tlme are being sharpened when traveling ters and plates for re-sharpening and truing.

When it is desired to sharpen the cutting edges of the blade 14: to impart a correperforations in the sponding action upon the inner face of the perforated plate 9 it. is only necessary that the cylinder 4 be removed from one support to the other, whereby the travel of the cutter is reversed so that the cutting edges of the plate 9 will besharpened and worn equally, which would not occur if the cutter was rotated in one direction at all times, as in the machines now in common "use.

Having thus described the invention, we olaim:, v I

In a cutting machine, the, combination of a perforated plate, a revoluble cutter having oppositel directed cutting edgesarranged to move both simultaneously in close proximity to said plate, means for revolving-said cutter in either direction in proximity to said plate, and means'for feeding the material to be out past said. cutter and throu h said plate when said means is operated in t e direction of one cutting edge-and means for feeding the material to be out past said cutter and through said plate when said means is operated in the direction of the other cutting edge.

In testimony whereof we hereunto ailix our signatures in the presence of two witnesses.

JAMES F. MAYFIELD. HIRAM B. ALGER.

Witnesses:

CHAS. UMBAGH, WM. F. PAINE. 

